New York City kicks off its 23rd annual Fleet Week celebration today, with two military flyovers ushering in the parade of ships.

Police say the first flyover came at 8:35 a.m. Wednesday over the Verrazano-Narrows Bridge with four naval jet aircraft. The second happened at 9:09 a.m. with eight aircraft passing over New York Harbor.

Fleet Week events will include free tours of the ships moored at docks in Manhattan and Staten Island, military band performances and tactical demonstrations by troops.